Existence of multiple solutions to elliptic equations satisfying a global eigenvalue-crossing condition

We study the multiplicity of solutions to the elliptic equation $Delta u+ f(x,u)=0$, under the assumption that f(x,u)/u crosses globally but not pointwise any eigenvalue for every x in a part of the domain, when u varies from $-infty$ to $infty$. Also we relax the conditions on uniform converge...

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Bibliographic Details
Main Authors: Duong Minh Duc, Loc Hoang Nguyen, Luc Nguyen
Format: Article
Language:English
Published: Texas State University 2013-06-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2013/145/abstr.html